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Method and apparatus for timing offset signaling

A technology of deviation and timing reference, applied in the field of timing deviation signaling, can solve the problem of wireless communication equipment not monitoring and directly controlling signaling

Active Publication Date: 2019-03-22
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the sleep state, the memory and clock are active, but the wireless communication device is configured not to monitor any direct control signaling

Method used

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  • Method and apparatus for timing offset signaling
  • Method and apparatus for timing offset signaling
  • Method and apparatus for timing offset signaling

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 A wireless communication system 10 including multiple groups 12 of wireless communication devices 14 is shown. More specifically, figure 1 As an example, three devices 14-1 to 14-3 in a group 12-1, three devices 14-4 to 14-6 in another group 12-2, and three devices in another group 12-3 Equipment 14-7 to 14-9. The devices 14 in any given group 12 are synchronized to the same timing reference at least within a predefined "acceptable" error margin. Synchronizing in this way, the devices 14 in any given group 12 time their transmission and reception according to this same timing reference. In contrast, the devices 14 in different groups 12 are not synchronized to the same timing reference, which means that the timing references of different groups 12 (and thus the transmission and reception timings of different groups 12) are at risk of misalignment.

[0032] A radio node 16 is associated with each group 12. As shown in the figure, for example, radio node 16-1 i...

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PUM

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Abstract

A wireless communication system (10) includes multiple sets (12) of wireless communication devices (14). Devices (14) within any given group (12) are synchronized to the same timing reference and devices (14) in different groups (12) are not synchronized to the same timing reference. A device (14) sends direct control signaling to other devices (14) according to the timing reference of its group (12). The method in the system (10) is implemented by a radio node (16) associated with one of the groups (12). The method includes generating (110) a message indicating, for each of the one or more groups (12), a range of possible values ​​for an offset between a timing reference of the group (12) and a common timing reference. The range accounts for the uncertainty of this bias. The method also includes sending (120) the message from the radio node (16).

Description

[0001] Related application [0002] This application claims the priority of U.S. Provisional Application 61 / 864,372 filed on August 9, 2013, the entire disclosure of which is incorporated herein by reference. Technical field [0003] This application relates generally to methods and devices in wireless communication systems, and particularly to methods and devices for misalignment signaling in such systems. Background technique [0004] Device-to-device (D2D) communication is a well-known and widely used component in many existing wireless technologies including ad hoc networks and cellular networks. Examples of device-to-device communication include several variants of Bluetooth and IEEE 802.11 standard suites such as WiFi Direct. These systems operate under unlicensed spectrum. [0005] Device-to-device communication as the underlay of a cellular network has been proposed as a way to utilize the proximity of communication devices and at the same time allow devices to operate in a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W84/18
CPCH04W56/0015H04W76/14H04W84/18
Inventor S·索伦蒂诺G·L·马西尼S·万斯特德
Owner TELEFON AB LM ERICSSON (PUBL)